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Iteru [2.4K]
2 years ago
5

Yassine on the football team tries to kick a football so that it stays in the air for a long "hang time". If the ball is kicked

with an initial velocity of 29.0 m/s
at an angle of 65.0° above the ground
a. What is the vertical component of the velocity?
b. What is the "hang time" (time in the air)?
1 pt for diagram or listed variables
2 pt for correct equation
2 pt for correct substitutions
1 pt for correct answer with units
Physics
1 answer:
liq [111]2 years ago
6 0
A is the answer sob I am sorry to bother
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To be a healthy family, which of the statements below is TRUE:
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Answer:

wait what do u mean by healthy beccause i choose C

Explanation:

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Using a rope that will snap if the tension in it exceeds 356 N, you need to lower a bundle of old roofing material weighing 478
klasskru [66]

Answer:

a) 2.5 m/s²

b) 6.12 m/s

Explanation:

Tension of rope = T = 356N

Weight of material = W = 478 N

Distance from the ground = s = 7.5 m

Acceleration due to gravity = g = 9.81 m/s²

Mass of material = m = 478/9.81 = 48.72

Final velocity before the bundle hits the ground = v

Initial velocity = u = 0

Acceleration experienced by the material when being lowered = a

a) W-T = ma

⇒478-356 = 48.72×a

\Rightarrow \frac{122}{48.72} = a

⇒a = 2.5 m/s²

∴ Acceleration achieved by the material is 2.5 m/s²

b) v²-u² = 2as

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⇒v² = 37.5

⇒v = 6.12 m/s

∴ Velocity of the material before hitting the ground is 6.12 m/s

5 0
3 years ago
How could you determine the instantaneous speed during a<br> trip?
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If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does
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= 200 Newtons.

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